Far beneath the ruined capital city of Lordaeron, the royal crypts have been turned into a bastion of evil and undeath. Arthas originally intended the Undercity to be the Scourge's seat of power, but the budding city was abandoned when he was recalled to aid the Lich King in distant Northrend. In Arthas' absence, the Dark Lady, Sylvanas Windrunner, led the rebel Forsaken to the Undercity and claimed it for her own. Since taking up residence, the Forsaken have worked to complete the Undercity's construction by dredging out the twisted maze of catacombs, tombs, and dungeons that Arthas began.